"""HomeKit controller session fixtures."""
import datetime
from unittest import mock
import pytest
@pytest.fixture
def utcnow(request):
"""Freeze time at a known point."""
start_dt = datetime.datetime(2019, 1, 1, 0, 0, 0)
with mock.patch("homeassistant.util.dt.utcnow") as dt_utcnow:
dt_utcnow.return_value = start_dt
yield dt_utcnow
